Historically, the Mercantile Library had several bound volumes of "Baptist Pamphlets" which were initially part of John Mason Peck's library but catalogued together under one call number. These volumes have been disbound and each pamphlet put in a separate, non-acidic enclosure. A number has been added to an alphabetical arrangement. The list is roughly arranged alphabetically by the first important word of the Church, benevolent Society, or other organization's title or name concerned.

This collection contains two letters written by the New York fur trade executive John Jacob Astor to Charles Gratiot of St. Louis in July of 1811 and to Anthony Charles Cazenove in July of 1813. Both have been transcribed.

This collection contains 31 hand-written letters bound in a single volume. The correspondence covers the years 1800-1820. Correspondents include Gen. James Wilkinson; Lieut. Zebulon M. Pike; Gov. William Henry Harrison; Henry Dearborn; William Clark; Frederick Bates; Gov. Meriwether Lewis; and Auguste Chouteau
Immediately after the Louisiana Territory was ceded by France to the United States, Gen. Daniel Bissell (1768-1833) was appointed Commandant of the U.S. Military Department of Missouri. He built, by government order, the contanment at Bellefontaine, just north of St. Louis. As Commandant, Bissell officially welcomed the expedition of Meriwether Lewis and William Clark to St. Louis. After his military career ended, Bissell retired to a large tract of land on the Bellefontaine Road near St. Louis.